CVE Vulnerabilities

CVE-2025-55074

Published: Nov 18, 2025 | Modified: Nov 25, 2025

CVSS 3.x

3.5

LOW

Source:

NVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

CVSS 2.x

RedHat/V2

RedHat/V3

Ubuntu

Vulnerability-free packages from our partners

Additional information

NVD	https://nvd.nist.gov/vuln/detail/CVE-2025-55074
CWE	https://cwe.mitre.org/data/definitions/.html

Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents plugin which allows other users to determine when users had read channels via channel member objects

Affected Software

Name	Vendor	Start Version	End Version
Mattermost_server	Mattermost	10.5.0 (including)	10.5.12 (excluding)
Mattermost_server	Mattermost	10.11.0 (including)	10.11.4 (excluding)

References

https://mattermost.com/security-updates

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